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- Title
Tailoring Nylon 6/Acrylonitrile-Butadiene-Styrene Nanocomposites for Application against Electromagnetic Interference: Evaluation of the Mechanical, Thermal and Electrical Behavior, and the Electromagnetic Shielding Efficiency.
- Authors
Luna, Carlos Bruno Barreto; do Nascimento, Emanuel Pereira; Siqueira, Danilo Diniz; Soares, Bluma Guenther; Agrawal, Pankaj; de Mélo, Tomás Jeferson Alves; Araújo, Edcleide Maria
- Abstract
Nylon 6/acrylonitrile-butadiene-styrene nanocomposites were prepared by mixing in a molten state and injection molded for application in electromagnetic interference shielding and antistatic packaging. Multi-wall carbon nanotubes (MWCNT) and maleic anhydride-grafted ABS compatibilizer were incorporated to improve the electrical conductivity and mechanical performance. The nanocomposites were characterized by oscillatory rheology, Izod impact strength, tensile strength, thermogravimetry, current-voltage measurements, shielding against electromagnetic interference, and scanning electron microscopy. The rheological behavior evidenced a severe increase in complex viscosity and storage modulus, which suggests an electrical percolation phenomenon. Adding 1 to 5 phr MWCNT into the nanocomposites produced electrical conductivities between 1.22 × 10−6 S/cm and 6.61 × 10−5 S/cm. The results make them suitable for antistatic purposes. The nanocomposite with 5 phr MWCNT showed the highest electromagnetic shielding efficiency, with a peak of –10.5 dB at 9 GHz and a value around –8.2 dB between 11 and 12 GHz. This was possibly due to the higher electrical conductivity of the 5 phr MWCNT composition. In addition, the developed nanocomposites, regardless of MWCNT content, showed tenacious behavior at room temperature. The results reveal the possibility for tailoring the properties of insulating materials for application in electrical and electromagnetic shielding. Additionally, the good mechanical and thermal properties further widen the application range.
- Subjects
ELECTROMAGNETIC shielding; COMPATIBILIZERS; ELECTROMAGNETIC interference; NANOCOMPOSITE materials; ELECTRIC conductivity; POLYMERIC nanocomposites; NYLON fibers; STYRENE-butadiene rubber
- Publication
International Journal of Molecular Sciences, 2022, Vol 23, Issue 16, p9020
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms23169020